Combined drag and harrow.



'1. C. BLOOMHELD. COMBINED DRAG AIIID HARROW.

APPLICATION -FILED APR. I4. ISI?. IIDMIDDI Patented .IIIII.22;1918.

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' y Bv ATTORNEY Lc. BLOOMHELD.

v COMBINED DRAG AND HARROW. APPLICATION EILED APK. I4. 19H. y mg@ mmm @11.22, 1918.

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INVENTOR WITNESSES TOI-IN C. BLOOMFIELD, OF EAST-COLUMBUS, OHIO.

COMBINED DRAG AND HAzanow.

To all whom t may concern:

Be it known that I, JOHN C. BLooMrinLD, a citizen of the United States, residin at East Columbus, in the county of Fran lin and State of Ohio, "have invented new and useful Improvements in Combined Drags and I-Iarrows, of which the following is a specification.

The present invention compreliends the provision of a combined harrow,.drag` and pulverizer, and is characterized bythe pro vision of a construction by means of which the soil can be prepared for seeding, and more particularly hurriedly leveled so as to retain the moisture, which is so essential for growth. A

To this end the invention embodies among other features a platform upon which are pivotally mounted parallel rows of blades arranged in series, the blades being capable of assuming positions relatively Vto Work the soil covered by the'entire area of the piatform, and to further provide spaces between Y the blades so that the platform will contact with the surface to assist in hurriedly leveling the same with one application of the de vice.

The nature and advantages of the invention will be better understood when the following detail description is read in connectionwith the accompanying` drawings, the invention residing in the construction, c`o1nbination and arrangement of parts as claimed.

In the drawings formingpart of this specication like numerals of reference indicate similar parts in the several views, and wherein Figure 1 is a top plan view.

Fig. 2 is a bottom plan view.

Fig. 3 is a diagrammatic view showing by dotted lines the relative adjusted posi.

tions of the blades at opposite sides of the transverse center of the platform.

Fig. L1 is a partial sectional view.

Fig. 5 is a transverse sectional view taken -on line 5-5 of Fig. 1.

Fig. 6 is a longitudinal sectional view on line 6-6 of Fig. 1.

' Fig. 7 is a detail view of one of the blades.

Referring more particularly to the drawings in detail, the invention essentially con sists of a platform 10 which may be con structed from any suitable material and design, but which is preferablyk of rectangular i Specification of Letters Patent.

Application filed April 14, 191'?.

Serial No. 162,075;

formation as shown. At opposite sides of the longitudinal center of the platform7 the latter is provided with spaced parallel rows of openings and arcuate-shaped slots 11 and 12 respectively, while these openings and slots are arranged in series at opposite sides of the transverse centerof the platform, so that the platform is provided with four series one at each corner and each series is indicated at A, B, C, and D, as clearly illustrated in Fig. 3. The distinguishing features between the respective series reside in the arrangement of the slots 12, it being noted that the innermost end of the slots 12 of the series A faces the corresponding eX- tremities of the slots 12 of the series B, while the corresponding outermost eXtremif ties of the slots 12 of the series C and D are most remote. The purpose of this specific arrangement will be hereinafter more fully described. For each opening and slot of the `respective series thereof, is a blade ofthe design illustrated in Fig. 7, wherein it will be noted thatthe blades are substantially l.-shaped in cross section.v Each blade is mounted for Vswinging movement upon a pivot 13, which pivots are arranged in the openings 11. As shown the pivot is passed ratentea aan. aa, 1era.

overlie the alined slot 12. Extending lon gitudinally from the platform, on the upper side of the latter, is a plurality of reciprocating elements 15, there being four of these elements, one for the slots 12 of each series, and across which slots the elements reciprocate. The extremities ofthe blades overlying the said slots are connected with their respective element 15 in any suitable manner, preferably by means of the pins or studs 16, Vand consequently when said elements are reciprocated, the angular relationship be-4 tween said blades of the different series is varied. The studs 16 obviously operate in the slots 12, and coming in engagement with the opposite ends of said slots limit the adiustment of the blades. M Y

Any suitable means may be employed for reciprocating the elements 15, and these elements may if desired be manipulated independently of each other. However I prefer to reciprocate said elements simultaneously, whereby the blades of the respective Series will change their angular relation in unison. To this end I preferably employ a rock shaft los ' 17 which is disposed transversely of the short arms y22 and 23 respectively, but in platform, and journaled'in suitable brackets 18. Relativelylongand short arms 19y and 20 respectively are connected to the adjacent extremities of-two of the -alined elements 15, with the opposite corresponding extremities of said arms i'iormally'disposed above and'below the shaft 17, and pivotally connected with a link 21 carried by the shaft and fixed thereto iii any suitable manner for partial rotation therewith. The adjacent eX- treinities'oftheremaining two elements 15 have connected thereto relatively long and this instance the opposite corresponding extremities of said arms which are normally Y disposed above and below the shaft 17 are pivotallyassociated with an operatinglever 24, the latter vbeing fixed Yupon the shaft 17 as shown.' yManifestly by swinging the lever in one or theV other diiectionmovement .is imparted to the arms 22 and 23 respectively,

f which in turn reciprocate the elements 15 vto Which they are connected.

j n l During this movement of the leverthe shaft 17 is partially rotatedtogether with thev link 21, and

'movement is imparted tothe arms 19 and y2O so that the remaining two elements 15 arey reciprocated, with a result that the blades of the respective series have their angular relation changed. One of the brackets 18 is preferably provided with a rack surface 25 which is-engaged by a pawl 26 cai'- riedrby the lever, sothat the blades may be fixed relatively-inv their' adjusted positions.

Y VIt will be noted that the vertical branches 14 ofthe blades constituting the series A yao Aat their forward corners as at 142.

llt-will no wbe observed that the blades constituting lthe series A and B arerpivoted adjacent the forward edge of the platform,

`and when the-studs 16 of these blades engage the innermost' endsof the slots 12 the blades are in straightV away position, but by reason of the specific disposition of the slots 12 of the series'Aand B, the blades of the respective series are capable of swinging movement inwardly to assumeV a position indii y cated by dotted .lines inFig. 3. However the blades constituting the series Gand D are pivoted at a point adjacent the longitudinal centerl of theplatform, with the slots 12 for these series so disposed, that when the studs 16 ofsaid blades are arranged at the outermost ends of the slots, the blades will also occupy a straight 'away'position The blades in thisinstance however swing ina reverse direction with regard to the blades of the series A and B, and are capable of assuming a position with respect to the blades of the series A and B as that indicated by dotted lines in Fig. 3. The purpose for this arrangement resides in the fact that as the device is dragged over the soil, that area of soil covered by the platform is completely worked, with a view of breaking up the clogs of dirt and preparing the soil for seeding. The construction and arrangement of blades also provide spaces bctween the blades, whereby the platform can come iii direct contact with the soil, with a view of hurriedly leveling the same, to retain the moisture which is so essential to growth. rlhe device in its entirety, in addition to being extremely simple in its construction, is very eflicient for the purpose intended, aiid can be very easily pulled or dragged over the surface.

It is believed that from the foregoing description the nature and advantages of the vinvention will be readily apparent, and while 1 have shown and described what I now consider the preferred embodiment of the invention, I desire to have it understood that Vwhat is herein shown and described is not considered restrictive, and that such changes may be resorted to when desired as fall within the scope of what is claimed.

That is claimed is:-

1. A deviceof the character described embodying a platform, spaced parallel rows of blades swingingly mounted upon the platform, each row being subdivided into sepa- .rate series, the respective series of each row being capable of movement toward and away from each other for changing the angular relationship of the respective series, and means for simultaneously adjusting said series.

2. A device of the class described embodying a platform, spaced parallel rows of blades swingingly mounted upon said `platform,and means for simultaneously adjusting said blades for changing the angular relationship of the respective rows for the p-urpose specified. A

3. A device of the character described embodying a platform, spaced parallel rows of blades mounted thereon for swinging movement, means simultaneously adjusting said blades for changing the angular relationship of the respective rows, and means for holding said blades fixed relative to the platform in any of their adjusted positions.

4. A device of the class described embodying a platform, spaced rows of spaced parallel blades mounted upon the platform, and capable of swinging movement, and means for simultaneously adjustingl the blades of one rowin a reverse direction to the adjustment of the blades of the adjacent row, and means for holding said blades fixed in their adjusted position.

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upon the platform, each row mames 5, A device of the class described embody ing a platform, spaced parallel rows of blades mounted for Swingin movement 8being subdi vided into separate series, and means for simultaneously adjusting' the blades in series for changing the angular relationship between the respective rows for the purpose specified.

G. A device of the class described e1nbodying a platform, spaced parallel rows of blades mounted thereon and capable oli' swinging movement, each row being subdivided into separate series of blades, the respective series of each row being capable of swinging movement in a reverse direction, and means for simultaneously adjusting the blades of said series to change the angular relationship of the blades ,of the respective rows.

7. A device of the class described embodying a platform, spaced parallel rows of blades mounted thereon and capable of swinging movement, the blades of one row being capable of an adjustment in a reverse direction to the blades ,of the adj aeent row, each row being; subdivided into a separate series of blades, the series of each row being capable of adjustment in a reverse direction, and means for simultaneously adjusting the blades in series of each row for the purpose described.

In testimony whereof I aliix my signature.

JOHN C. BLooMFiELD.

Gopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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